Automatic door-check.



No. 759,019. PATENTED MAY 9, 1904. S. J. RAWLINGS. AUTOMATIC DOOR CHECK.

APPLIUATIoN FILED JULY 27, 1909. 110 MODEL. c

QW hummm No. P759,013.

UNITED STATES Patented May 3, 1904.

PATENT OFFICE.

AUTOMATIC DOOR-CH ECK.

SPECIFICATION forming part of Letters Patent No. 759,013, dated May 3,1904.

Application file."l July 27, 1903. Serial No. 167,153. (No model.)

To @1J/Z whom it may concern.-

Be it known that 1f, SAMUEL J. RAwLINes, a citizen of the United States,residing at Kearney, in the county of Hudson and State of New Jersey,have invented certain new and useful Improvements in AutomaticDoor-Checks; and I do hereby declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

Y This invention relates to improvements in automatic door-checks.

The object of the present invention is the provision of a door-check ofthe type adapted automatically to secure a door in its open positionwithout the necessity of Amanually operating the check to cause itsengagement with the door.

A further object of the invention is to provide an automatic door-checkof the type mentioned which is extremely simple in construction, easy ofoperation, inexpensive in manufacture, and one entirely free fromsprings and other structural elements liable to frequent breakage andnecessary repairs.

With these general objects in view and others which will appear as thenature of the improvements is better understood the invention consists,substantially, in the novel construetion, combination, and arrangementof parts, as will be hereinafter fully described, illustrated in theaccompanying drawings, and pointed out in the appended claims.

While the form of the invention herein shown and'dcscribed is believedto be a preferable embodiment thereof, it will of course be understoodthat the same is susceptible of various changes in the form, proportion,and minor details of construction, and the right is therefore reservedto modify or vary the invention as falls within the spirit and scopethereof.

In the drawings, Figure 1 is a perspective view of a portion of a doorand wall with a check applied thereto constructed in accordance with thepresent invention. Fig. 2 is a longitudinal sectional view of a checkwith the b u n l parts thereof engaged. Fig. 3 1s a front ele- Fig. 4 isa similar view `vation of the catch.

of the latch. Fig. 5 is a top plan view of the latter. Fig. 6 is asimilar view of another form of latch. Fig. 7 is a side elevation of thelatch shown in Fig. 6.

Referring to the drawings, the numeral 1 designates a catch whichcomprises an attaching-plate 2, the ends of which are perforated, as at3, for the reception of screws 4 or their equivalent, to secure theplate 2 in applied position to a door, and projecting from the plate 2at right angles to the latter and at substantially its middle portion isa tongue 5, the outer end of which terminates in a hook 6, between whichlatter and the plate 2 is formed a notch or recess 7. It will beobserved that the outer face of the hook 6 is inclined and that thenotch or recess 7 is likewise inclined and in parallelism with theinclination of the outer face of the hook 6, and consequently the edgeof the notch or recess 7 nearest the plate 2 forms an inclined plane.

The numeral 8 designates a socket having outwardly extending perforatedwings 9, through the perforations of which screws 1() or theirequivalent are passed to secure the socket 8 to a wall or similarsurface, and said socket is provided with a series of forwardlyextendingbraces or shields 11, the edges of which extend forwardly and`downwardly and terminate at a point removed from the front edge of thebottom of the socket. Pivotally connected, as by means of a pin 12,between the braces 11 is a latch 13, the latter being provided with aneck 14, through which the pin 12 passes, and said latch 13 is providedat its forward end with an opening 15 to receive the hook 6 of thecatch. It will 'be observed that the inner edge of the `forward end ofthe openingl is provided with oppositely- 'beveled faces, the lower face16 of which conforms to the inclination of the upper end of the hook 6,while the upper face 17 is of substantially` the same inclination as theinner edge of the hook 6 for a purpose to be presently stated..Depending from the lower face of the latch 13 is alug 18,'which lug isdesigned to abut against the inner portion of the socket 8, and thuslimit downward movement of said latch.

In Figs. 6 and 7 is shown a modified form IOO of the latch, andreferring thereto it will be observed that this form is substantiallythe saine as that disclosed in the other iigures, excepting that theperforated ears 9 are attached to the bottom of said socket in order toadapt the latter for application to a floor. lith this form of latch itis obvious that the same may be applied at any point on a floor withinthe path of movement of a door and is effective for use with the latchfor holding the door in open position.

In practice the catch 1 is applied to a door, as illustrated in Fig. 1,and the latch is applied to the wall, as also illustrated in Fig. 1, orin lieu thereof said latch may be applied to the floor by adopting theform shown in Figs. 6 and 7. W' hen the door is swung' open, theinclined front edge of the hook 6 contacts with the end of the latch 13,and the latter is caused to ascend said inclined front face until theupper end of the hook 6 is at a point beneath the opening 15, when thelatch 13 will gravitate so that the front end thereof will drop into thenotch or recess 7, the opening 15 receiving the upper end of the hook 6.In this position it is obvious that the door will be prevented closingby reason of the engagement of the latch and the hook. lVhen, however,it is desired to close the door, the latter is given a quick movementfirst in the direction toward the socket S and then in the oppositedirection to remove the hook 6 from beneath the opening 15 of the latch13. In the first movement the inclined front face of the hook 6 willcause the latch 13 to be elevated, so as to carry the front end thereofout of the plane of movement of the hook 6, and in the second movement,which it must be remembered is a quick one, the inclined upper end ofthe notch 6 will contact with the lower beveled face 16 of the front endof said latch, and consequently as the upper end of the hook 6 and saidbeveled face are of the same inclination the end of the latch will becaused to ride upon the inclined end of the hook, thus preventing'engagement of the latter with the opening' 15, and the catch is thusfreed from the latch to permit the door being closed. In opening thedoor it will also be seen that after the latch 13 is broug'ht intoengagement with the hook 6 the inclined inner face of said hook willride upon the upper beveled face 16 of the latch, and thereby cause thelatch to descend into the notch or recess 7 in any slow movement of thedoor toward the frame of the latter.

Having thus described the invention, what is claimed as new, and desiredlto be secured by Letters Patent, is#

1. In an automatic door-check, the combination with a catch comprisingan attachingplate, a tongue projecting' therefrom, and an inclined hookcarried by said tongue, the latter being' provided with a notch orrecess between said hook and said plate, of a socket, a latch pivotedtherein and provided with a depending lug for limiting downward movementof said latch, said latch being provided with an opening adapted toreceive said hook, the inner edge of the forward end of said openingbeing provided with oppositely-beveled faces adapted to be engaged bythe inner face and end of said hook, the forward end of said latch beingreceived by the notch of said tongue when said parts are engaged.

2. In an automatic door-check, the combination with a catch comprisingan attachingplate, a tongue projecting therefrom, and an inclined hookcarried by said tongue, the latter being provided with a notch or recessbetween said hook and said plate, of a socket provided withforwardly-extending braces or shields, and a latch pivoted between saidbraces or shields, said latch being provided withv an opening adapted toreceive said hook, the inner edge of the forward end of said openingbeing provided with oppositely-beveled faces adapted to be engaged bythe inner face and end of said hook, the forward end of said latch beingreceived by the notch of said tongue when said parts are engaged.

In testimony whereof I aflix my signature in the presence of twowitnesses.

SAMUEL J. RAWLINGS.

IVitn esses:

JAMES HEATH, JAMES J. MURRY.

